Datasheet

ADSP-BF609 EZ-KIT Lite Evaluation System Manual 1-17
Using ADSP-BF609 EZ-KIT Lite
An example program is included in the EZ-KIT Lite installation directory
to demonstrate how to set up and access the rotary encoder.
Temperature Sensor Interface
Two external pins (SYS_TDA and SYS_TDK) of the processor are connected
to an internal thermal diode. The EZ-KIT Lite uses ON Semiconductor
ADM1032 digital thermometer and under/over temperature alarm to
monitor the processor’s temperature as well as the thermal diodes inside
the ADM1032 device. The thermometer uses the I
2
C bus and flag pins of
the processor. The following software-controlled signals are used for tem-
perature monitoring.
• TEMP_IRQ_EN (programmable flag pin PG9)
• TEMP_THERM_EN (programmable flag pin PB15)
The thermal limit flag is connected to an LED (LED5) for a visual alarm if
the temp exceeds the limit. The thermal limit flag and ADM1032 IRQ
connect to flag pins of the processor, but are nonessential for temperature
monitoring. Consequently, the software-controlled switches have these
signals disconnected from the ADSP-BF609 processor by default.
See “Thermal Limit LED (LED5)” on page 2-23 and “Software-Con-
trolled Switches (SoftConfig)” on page 2-3 for more information.
Example programs are included in the EZ-KIT Lite installation directory
to demonstrate temperature sensor operations.
Link Ports Interface
The ADSP-BF609 processor has four dedicated link ports. Each link port
has a clock pin, an acknowledgment pin, and eight data pins. The ports
can operate at up to 83 MHz and act as either a receiver or a transmitter.